As proposed last week, it would be beneficial to decrease the width of the channel where the PDMS substrate is. However, this would lead to remake the substrates. For that reason, it was simply kept as it was.
Another attempt to fabricate the device was made, with the bottom layer still being 2mm thick.
Due to the thickness of the layers, it is not possible to press them in such a way that they remain adhered through the Pressure Sensitive Adhesive. Therefore, leakage is very likely to happen
As per the suggestion of the supervisor, the bottom layer of the new device was made from an acetate sheet instead of using 0.5mm thickness PMMA.
All the other dimensions were kept the same as last week's device.
Some rings were designed to be placed around the hole to act in a similar manner as the thick 2mm layer that was previously being used.
Initially, it didn't seem to leak, but the wobbling of the device lead to inconclusive results.